git.sur5r.net Git - minitube/blob - src/loadingwidget.cpp

   1 /* $BEGIN_LICENSE
   2
   3 This file is part of Minitube.
   4 Copyright 2009, Flavio Tordini <flavio.tordini@gmail.com>
   5
   6 Minitube is free software: you can redistribute it and/or modify
   7 it under the terms of the GNU General Public License as published by
   8 the Free Software Foundation, either version 3 of the License, or
   9 (at your option) any later version.
  10
  11 Minitube is distributed in the hope that it will be useful,
  12 but WITHOUT ANY WARRANTY; without even the implied warranty of
  13 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  14 GNU General Public License for more details.
  15
  16 You should have received a copy of the GNU General Public License
  17 along with Minitube.  If not, see <http://www.gnu.org/licenses/>.
  18
  19 $END_LICENSE */
  20
  21 #include "loadingwidget.h"
  22 #include "fontutils.h"
  23
  24 LoadingWidget::LoadingWidget(QWidget *parent) : QWidget(parent) {
  25     QPalette p = palette();
  26     p.setColor(QPalette::Window, Qt::black);
  27     p.setColor(QPalette::WindowText, Qt::white);
  28     p.setColor(QPalette::Base, Qt::black);
  29     p.setColor(QPalette::Text, Qt::white);
  30     setPalette(p);
  31     setAutoFillBackground(true);
  32
  33     QBoxLayout *layout = new QVBoxLayout(this);
  34
  35     titleLabel = new QLabel();
  36     titleLabel->setPalette(p);
  37     titleLabel->setAlignment(Qt::AlignHCenter | Qt::AlignBottom);
  38     titleLabel->setWordWrap(true);
  39     titleLabel->setSizePolicy(QSizePolicy::Expanding, QSizePolicy::Expanding);
  40     titleLabel->setTextFormat(Qt::RichText);
  41     titleLabel->setFont(FontUtils::light(titleLabel->font().pointSize()));
  42     layout->addWidget(titleLabel);
  43
  44     descriptionLabel = new QLabel();
  45     descriptionLabel->setPalette(p);
  46     descriptionLabel->setAlignment(Qt::AlignHCenter | Qt::AlignTop);
  47     descriptionLabel->setWordWrap(true);
  48     descriptionLabel->setSizePolicy(QSizePolicy::Ignored, QSizePolicy::Expanding);
  49     descriptionLabel->setTextFormat(Qt::RichText);
  50     descriptionLabel->setOpenExternalLinks(true);
  51     layout->addWidget(descriptionLabel);
  52
  53     progressBar = new QProgressBar();
  54     progressBar->setStyleSheet("QProgressBar {max-height:3px; background:black; border:0} "
  55                                "QProgressBar::chunk {background:white}");
  56     progressBar->setTextVisible(false);
  57     layout->addWidget(progressBar);
  58 }
  59
  60 void LoadingWidget::setVideo(Video *video) {
  61     adjustFontSize();
  62
  63     QString title = video->getTitle();
  64     // enhance legibility by splitting the title
  65     static const QLatin1String p("<p>");
  66     title.replace(QLatin1String(" - "), p);
  67     title.replace(QLatin1String(" | "), p);
  68     title.replace(QLatin1String(" — "), p);
  69     title.replace(QLatin1String(": "), p);
  70     title.replace(QLatin1String("; "), p);
  71     title.replace(QLatin1String("] "), QLatin1String("]<p>"));
  72     title.replace(QLatin1String(" ["), QLatin1String("<p>["));
  73     title.replace(QLatin1String(" ("), QLatin1String("<p>("));
  74     title.replace(QLatin1String(") "), QLatin1String(")<p>"));
  75     titleLabel->setText(title);
  76     titleLabel->setVisible(window()->height() > 100);
  77
  78     const int maxDescLength = 400;
  79
  80     QString videoDesc = video->getDescription();
  81     if (videoDesc.length() > maxDescLength) {
  82         videoDesc.truncate(maxDescLength);
  83         videoDesc = videoDesc.trimmed();
  84         videoDesc.append("…");
  85     } else if (videoDesc.endsWith(QLatin1String(" ..."))) {
  86         videoDesc = videoDesc.left(videoDesc.length() - 4);
  87         videoDesc.append("…");
  88     }
  89     static const QRegExp linkRE("(https?://\\S+)");
  90     videoDesc.replace(linkRE, QStringLiteral("<a style='color:white' href=\"\\1\">\\1</a>"));
  91     descriptionLabel->setText(videoDesc);
  92     bool hiddenDesc = height() < 400;
  93     if (hiddenDesc)
  94         titleLabel->setAlignment(Qt::AlignCenter);
  95     else
  96         titleLabel->setAlignment(Qt::AlignHCenter | Qt::AlignBottom);
  97     descriptionLabel->setVisible(!hiddenDesc);
  98
  99     progressBar->setValue(0);
 100     startTime.start();
 101 }
 102
 103 void LoadingWidget::setError(const QString &message) {
 104     titleLabel->setText(tr("Error"));
 105     descriptionLabel->setText(message);
 106     progressBar->setValue(0);
 107 }
 108
 109 void LoadingWidget::bufferStatus(int percent) {
 110     if (startTime.elapsed() > 2000 && percent > progressBar->value())
 111         progressBar->setValue(percent);
 112 }
 113
 114 void LoadingWidget::adjustFontSize() {
 115     QFont f = titleLabel->font();
 116     int smallerDimension = qMin(height(), width());
 117     f.setPixelSize(smallerDimension / 12);
 118     QFontMetrics fm(f);
 119     int textHeightInPixels = fm.height();
 120     int spacing = textHeightInPixels / 2;
 121     layout()->setSpacing(spacing);
 122     layout()->setMargin(spacing);
 123     titleLabel->setFont(f);
 124
 125     f.setPixelSize(f.pixelSize() / 2);
 126     descriptionLabel->setFont(f);
 127 }
 128
 129 void LoadingWidget::clear() {
 130     titleLabel->clear();
 131     descriptionLabel->clear();
 132     progressBar->setValue(0);
 133 }
 134
 135 void LoadingWidget::resizeEvent(QResizeEvent *e) {
 136     Q_UNUSED(e);
 137     if (isVisible()) adjustFontSize();
 138 }